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Hi,
I just stuck here, cause I found a thread about fast usb charging. But there is no answers or solutions.
I have many htc devices. It seems that some of them has a problem with 3rd party usb chargers.
My most used device is Universal. It suck a lot of power. THis one doesn't enable usb charging at all, until you put it in sleep mode before pluging the charger.
Anyway, the same issue for Kaiser too.
The problem is, that it doesn't matter how much current is the charger able to deliver. They just use some kind of recognition of original chargers.
What I already measured: Original charger and universal running => takes 1200mA. 3rd party charger or my 5A PSU => Universal/Kaiser sucks just 500mA.
This is fast/slow charge. I found here discussion about 4 and 5 pins shorted??
But WTF which 4 & 5 pin?
http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config
According to this pinout. It would be 2 GND of Audio side? I'm not sure that original charger use extUSB audio side to charge...? It also could be D & A pins, but I'm afraid to connect 5V to Data- pin.
Anyway, someone here have to know it.
If not, in a few days I'll try all possible combinations and post the results.
Thanks
Shef
I'd also be interested to know about this. When I charge my TYTN II via USB, it takes much longer to charge than if I charge it via the mains charger (I prefer USB since I travel a lot and it's one less charger I need to carry around).
Better still, is it possible to buy a USB cable that will charge at the same rate as the mains charger rather than messing with a USB cable with the associated risks?
Best,
Gary.
Shef said:
Hi,
What I already measured: Original charger and universal running => takes 1200mA. 3rd party charger or my 5A PSU => Universal/Kaiser sucks just 500mA.
This is fast/slow charge. I found here discussion about 4 and 5 pins shorted??
But WTF which 4 & 5 pin?
http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config
Click to expand...
Click to collapse
a usb port only supplies 500ma, while the wall charger does 1200ma as the OP has measured (although it says 1A at the back of the charger). changing a cable is not gonna superpower up your usb port.
unless maybe you get hold of a forked USB cable, like the one that Seagate Free Agent drives come supplied with... you know, 1 mini USB splitting halfway down to two normal USB plugs.
Worth experimenting with, do you think?
wyrm said:
unless maybe you get hold of a forked USB cable, like the one that Seagate Free Agent drives come supplied with... you know, 1 mini USB splitting halfway down to two normal USB plugs.
Worth experimenting with, do you think?
Click to expand...
Click to collapse
good call.......with a little googling i came up with this
http://www.universaluk.com/acatalog...2_x_Type_A_to_mini_B__USB_2_0__1m__Lindy.html
tried ebay, my brief search came up with lots of unrelated results, so i gave up
I got one of those leads, came with my portable 2.5" hard drive. Just tried the lead on my Tytn 2 and it does charge almost as fast as the mains plug
Success
Ok, so, I tried to experiment.
Here you go.
Usb simple cable 480ma charge.
The same result with Motorola charger.
Motorola charger pins A and B short circuit - 890mA.
That's much better, althrough I suppose it can suck more current then 890mA, but it's significantly better.
THere is also pins data+ and data- short circuited (I don't know if it has effect, but I can't disconnect it in this connector).
Apparently NC (not connected) pin on our pinout schematics definitely is connected.
With % of charged battery it suck less and less current....I suppose it's usual, this should be even driven by ROM.
So, update your cables
It works even with car charger, so no more charger problems...
Shef
Just to be clear - you took a Motorola USB cable and shorted pins A and B (which are which by the way?) and it provides a decent current....
How do you short the pins? I've looked in the end of cable and I can hardly see the pins, let alone short them! What's the trick here or have I missed something?
Thanks,
Gary.
Shef said:
Ok, so, I tried to experiment.
Here you go.
Usb simple cable 480ma charge.
The same result with Motorola charger.
Motorola charger pins A and B short circuit - 890mA.
That's much better, althrough I suppose it can suck more current then 890mA, but it's significantly better.
THere is also pins data+ and data- short circuited (I don't know if it has effect, but I can't disconnect it in this connector).
Apparently NC (not connected) pin on our pinout schematics definitely is connected.
With % of charged battery it suck less and less current....I suppose it's usual, this should be even driven by ROM.
So, update your cables
It works even with car charger, so no more charger problems...
Shef
Click to expand...
Click to collapse
Also interested in how to short the pins. I use Navizon, bluetooth HSDPA tethering, and iGuidance while on the ambulance and even my iGo 3A max rated charger can barely keep up because the tilt wont accept all of the available current.
So have anyone found a way to fast charge our ppc through usb??
Yes, that is correct. Short pins 4 & 5 (4 is normally NC) to enable fast-charging. If you do it correctly, the phone shouldn't pick up tethering, and therefore should not say "PC Connected" or the like..
The TracyAndMatt pinout is wrongly numbered. The pin assignments are correct, but the number/letter scheme they used is incorrect. True ExtUSB pinout translation to their pinout is as follows:
T & M Real ExtUSB
-------------------------------
Pins E D C B A = 1 2 3 4 5
Pins 1 2 3 4 5 6 = 6 7 8 9 10 11
The way I remember is that the corner opposite the angled one is where pin 1 starts (where E is on the T&M pinout) - and they go like most IEC-standard connectors, in a clock-like circular numbering scheme.
Here's a better pinout: http://pinouts.ru/PDA/htc_extUSB_pinout.shtml
Hope this helps!
--W5i2
its the milliamps that is the problem even doubling up with a y splitter does not do much Find a charger with the most milliamps for a faster charge 1.2 amps works best and as far as i know no usb port puts out that much even if they are wired in a series. Many try to sell lower amp chargers they dont even know about it at att. if the screen is off they will charge but not well these phones are energy hogs. I must have at least twenty chargers and messed around with them... the original or one of highest amperage works for me.
Check winhlp.com/node/855 for the answer.
htc_battery_trout.c said:
/* A9 reports USB charging when helf AC cable in and China AC charger. */
/* Work arround: notify userspace AC charging first,
and notify USB charging again when receiving usb connected notificaiton from usb driver. *
Click to expand...
Click to collapse
I find this annoying. I can't tell if my wall charger is fast charging or not because the G1 always says "AC"
hgmichna said:
Check winhlp.com/node/855 for the answer.
Click to expand...
Click to collapse
That is not going to help HTC owners.
HTC charging cable
kiss_se said:
That is not going to help HTC owners.
Click to expand...
Click to collapse
http://winhlp.com/node/855 was explicitly written for HTC smartphone owners.
hgmichna said:
[...] was explicitly written for HTC smartphone owners.
Click to expand...
Click to collapse
Sorry, I meant to say: That is not going to help extusb owners.
hgmichna said:
Check winhlp.com/node/855 for the answer.
Click to expand...
Click to collapse
Is it possible to get one of the 'fast charge' enabled USB cables on eBay or elsewhere? I am not keen on doing the mod described.
What is the maximum mAh recommended for HTC devices? Is it still 1.2 A or more?
zurpher said:
Is it possible to get one of the 'fast charge' enabled USB cables on eBay or elsewhere? I am not keen on doing the mod described.
Click to expand...
Click to collapse
Check http://winhlp.com/node/855#qaes for the only buyable solution I know, besides compatible chargers. Your best bet is probably the original HTC charger, available for roughly $10.
zurpher said:
What is the maximum mAh recommended for HTC devices? Is it still 1.2 A or more?
Click to expand...
Click to collapse
There can be no recommended maximum mAh. There can only be a required current, which differs from device to device. Check Ohm's Law. The device determines how much current it draws. If the charger cannot deliver that current, then the charging process can fail in various ways, all undesirable.
hgmichna said:
Check http://winhlp.com/node/855#qaes for the only buyable solution I know, besides compatible chargers. Your best bet is probably the original HTC charger, available for roughly $10.
There can be no recommended maximum mAh. There can only be a required current, which differs from device to device. Check Ohm's Law. The device determines how much current it draws. If the charger cannot deliver that current, then the charging process can fail in various ways, all undesirable.
Click to expand...
Click to collapse
Could the USB Switching 2A Power Charger Adapter Convertor Plug be similar in function to the one that you've linked?
zurpher said:
Could the USB Switching 2A Power Charger Adapter Convertor Plug be similar in function to the one that you've linked?
Click to expand...
Click to collapse
I don't know, but probably not. Apple used to use a different signalling scheme involving resistors.
I was just wondering if anyone here has spotted a Nexus 7 car charger? Does it not matter if it's not specifically made for the Nexus 7? I'm trying to find one to buy online and I'm having some troubles. First post here I think I came to the right place though. :laugh:
Silversub745 said:
I was just wondering if anyone here has spotted a Nexus 7 car charger? Does it not matter if it's not specifically made for the Nexus 7? I'm trying to find one to buy online and I'm having some troubles. First post here I think I came to the right place though. :laugh:
Click to expand...
Click to collapse
Clicked thanks on accident lol. Any USB car charger should work, but I would make sure you grap a 1 amp one just so it has enough output to charge the tablet at a decent rate.
probably better with a 2amp one. samsung makes one for the tab2, about $12 on amazon, and just use your own microusb cable to connect to it.
vroomr4 said:
probably better with a 2amp one. samsung makes one for the tab2, about $12 on amazon, and just use your own microusb cable to connect to it.
Click to expand...
Click to collapse
Heck, I didn't even know they had 2 amp ones.
vroomr4 said:
probably better with a 2amp one. samsung makes one for the tab2, about $12 on amazon, and just use your own microusb cable to connect to it.
Click to expand...
Click to collapse
Yup, go with a 2Amp one. Most of the cigarette lighter usb chargers are 2.1A.
Avoid the cheap Chinese 2+Amp car chargers, they can be so badly made they cause enough interference to wipe out your FM radio.
/edit 1Amp will be fine but don't go lower, the N7 would likely burn it out.
FYI I tried a 5v 1a wall charger and my gnex7 said f u wouldn't take the charge. 2a or nothing I say
Sent from my Nexus 7 using xda app-developers app
Troute said:
Avoid the cheap Chinese 2+Amp car chargers, they can be so badly made they cause enough interference to wipe out your FM radio.
/edit 1Amp will be fine but don't go lower, the N7 would likely burn it out.
Click to expand...
Click to collapse
Do you already have the Nexus 7? If so, can you take a look at the charger and see if rated at 1A output and/or try to charge it with a charger that came with your phone?
I am just curious if it can actually charge with less than 2A. The charger listed in the Play Store outputs 2Amps and I thought most tablets require 2A to charge.
https://play.google.com/store/devic...sMSwyLDExMSwiZGV2aWNlLW5leHVzXzdfY2hhcmdlciJd
Fusion777 said:
FYI I tried a 5v 1a wall charger and my gnex7 said f u wouldn't take the charge. 2a or nothing I say
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Thanks for verifying.
gsrrr said:
Do you already have the Nexus 7? If so, can you take a look at the charger and see if rated at 1A output and/or try to charge it with a charger that came with your phone?
Thanks for verifying.
Click to expand...
Click to collapse
Still waiting, should only be a couple of days now though...
I know this is something most people never do...but if you read the manual for the Nexus 7 it says you can charge it on a standard USB port with the Nexus 7 in sleep mode (no doubt because the power draw is much less). Standard USB ports are typically .5A...sometimes less. I would say that's the actual minimum. For the fastest charging 2A is what you want though.
The ASUS charger that comes with the N7 is rated at 2A (10W). I tested an old BlackBerry 0.85A (~4W) micoUSB charger and it seemed to work fine and the N7 didn't complain though I didn't do any scientific tests against the charging rates.
The 0.5A (2.5W) chargers probably won't even charge the unit if you're actively using it.
Cheers,
Kermee
Kermee said:
The ASUS charger that comes with the N7 is rated at 2A (10W). I tested an old BlackBerry 0.85A (~4W) micoUSB charger and it seemed to work fine and the N7 didn't complain though I didn't do any scientific tests against the charging rates.
The 0.5A (2.5W) chargers probably won't even charge the unit if you're actively using it.
Cheers,
Kermee
Click to expand...
Click to collapse
Yeah...read my previous post...the manual says you can charge on a standard usb port (0.5A sometimes less) but only if the Nexus 7 is in sleep mode...ie you're not actively using it. If you can't charge it while connected to USB and it's in the sleep state...then your usb port is probably a low power USB port (<0.5A).
For those looking for a good backup battery charger for it...I recommend this one: http://www.amazon.com/gp/product/B005NGKR54/ref=oh_details_o05_s00_i00
works perfectly with my Nexus 7 (just make sure to use the correct USB out port on it as only one of them is 2A)
DealExtreme Charger
Saw this one on DealExtreme, even come with cable:
http://www.dealextreme.com/p/car-ci...-port-for-google-nexus-7-tablet-146751?item=8
Will be ordering will update when arrives. Also they're carrying Nexus 7 Cables in Pink, Green and Orange.
Was using a Sprint micro-USB plus charger (model PVX8823) with attached cable and standard USB port for 2nd device that I was using for my phone. Output is 0.65Amp which isn't sufficient and will slowly drain the N7 battery while in use. ~$35 at Sprint retail store. Wouldn't recommend for obvious reason.
Fortunately, had a spare Motorola SPN5400A 1Amp I bought with some screen protectors from Amazon because it was cheap like ~$5. 1Amp is sufficiently to maintain the charge while in use at near worse case running 3D games like Dead Trigger, Shadowngun, etc. So, 1Amp is minimum threshold.
You need a charger that:
1) Is capable of 2A (1.5A may be sufficient, 1A is a little too low)
2) Shorts D+ and D- together - This rules out most iPad chargers.
If it says it is made for iPod/iPad it will not work without modifications or adapters.
Samsung tablet chargers will work.
If you take an iPad charger, open it up, and short D+ and D- together, it will work.
dkhilo said:
Saw this one on DealExtreme, even come with cable:
Will be ordering will update when arrives. Also they're carrying Nexus 7 Cables in Pink, Green and Orange.
Click to expand...
Click to collapse
Sorry to bump an old thread but any feedback with that charger? I'm looking for one with 2 port to power both my N7 and my droid razr maxx while in car.
dcpuser said:
Sorry to bump an old thread but any feedback with that charger? I'm looking for one with 2 port to power both my N7 and my droid razr maxx while in car.
Click to expand...
Click to collapse
Most chargers for android phones will work. I use my HTC charger for ,mine and I bought a car charge that has the standard micro USB connector but also has another USB port so I can charge 2 devices at the same time with 1 charging unit. You droid razor charger will work just fine. You just need to locate a charger that is capable of charging 2 devices at the same time such as this one
http://www.amazon.com/GTMax-Metalic-Vehicle-Charger-Adapter/dp/B005X5L8PI
You'll be good to go with this.
Sent from my Nexus 7 using xda premium
dcpuser said:
Sorry to bump an old thread but any feedback with that charger? I'm looking for one with 2 port to power both my N7 and my droid razr maxx while in car.
Click to expand...
Click to collapse
Check out this oem charger from Sprint. Its a dual port charger with a 2a output and you dont have to worry about buying a knock off charger that may or may not perform as expected. It also can be used as a wall charger. Good price too....
http://www.ebay.com/itm/130712043019?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_1459wt_1399
So are any of these confirmed 100% to work? the one a few links back (GTMax) says works with iphone, and I thougth that meant would NOT work with N7. So I am confused on what will work, and I am already on my 2nd Nexus7 being I blew out the USB trying a bunch of differnt chargers for the car.
I would like something that is small and can have multiple USB plugged in, but not a show stopper, just hope to find something on Amazon (Prefer Prime) so I can oder with my case today. Really want to use this in the car more (GPS\GoogleMusic..ect.), but with no power not a great option.
Thanks in Advance,
Drops
dkhilo said:
Saw this one on DealExtreme, even come with cable:
In for the orange so it will be easy to spot if misplaced. Thanks!
Click to expand...
Click to collapse
Has anyone found a wall charger that they're happy with? I have an Amazon basics 2.1 Amp one that charges OK and shows up as an A/C charger in the battery stats, but it's not as fast as the stock one (which already is slow).
I'd post a link to what I have, but the forum still sees me as a newbie even though I've been lurking around for a few years now.
domlazz said:
Has anyone found a wall charger that they're happy with? I have an Amazon basics 2.1 Amp one that charges OK and shows up as an A/C charger in the battery stats, but it's not as fast as the stock one (which already is slow).
I'd post a link to what I have, but the forum still sees me as a newbie even though I've been lurking around for a few years now.
Click to expand...
Click to collapse
i'm still waiting for the pogo chargers to go back on sale.
fionic said:
i'm still waiting for the pogo chargers to go back on sale.
Click to expand...
Click to collapse
Same... :crying:
If you don't really care about super fast charging time almost all usb wall chargers are the same because of the limitations of a usb cable. Just color, shape, and size might vary
I'm using the my hp Touchpad charger. It seems like it charges faster than the original charger. I'll have to test and see though.
Sent from my Nexus 10 using Tapatalk HD
I bought a pogo charger so it won't take up the micro usb slot and also safer charging with pets (or kids). If I'm lucky it will charge faster too.
the pogo charger uses the original samsung ac adapter though.. it doesn't come with one
I just use any random charger I have (I think I use an old Kindle one right now) and leave it charge while I sleep. I have no complaints and have a POGO on order.
I ordered the Powergen chargers for both the wall and my car. They supply 3.1 amps so whatever the max is that the N10 will take, it will get it.
Search for "powergen 3.1" on Amazon and you'll find both.
I'm using my Asus Transformer Prime charger with mine. It seems to work well.
Sent from my Nexus 10 using xda premium
scooterboy5 said:
I ordered the Powergen chargers for both the wall and my car. They supply 3.1 amps so whatever the max is that the N10 will take, it will get it.
Search for "powergen 3.1" on Amazon and you'll find both.
Click to expand...
Click to collapse
Nice tip - thanks. That and the POGO has to be about as fast as it gets PLUS with the second USB port I will be able to charge my phone and tablet at the same time, same charger.
scooterboy5 said:
I ordered the Powergen chargers for both the wall and my car. They supply 3.1 amps so whatever the max is that the N10 will take, it will get it.
Search for "powergen 3.1" on Amazon and you'll find both.
Click to expand...
Click to collapse
Thanks everyone for your input. I ended up ordering the Powergen 3.1 charger suggested above. I'll report back on what my experience is. I did note that one of the reviews of that item at Amazon says it charges the Nexus 10 well, so my hopes are high.
Next question - anyone know what happens if you plug in the POGO charger and a USB charger at the same time?
Your charger isnt going to make a great deal of difference in charge time. An updated and/or custom kernel will help a LOT more with that.
The AC wall unit isn't a charger, it's the power supply for the charger inside the N10.
Me and another N10 owner measured how much current the N10 draws from the PS and it was less than 1A, so the device isn't even asking anywhere near the max that the PS can supply. Unless there is someother reason and there very well could be, a larger PS "might" be a waste of time/money.
I think the N10 charger uses a special usb protocol which allows it to charger faster than most
invisibro said:
Your charger isnt going to make a great deal of difference in charge time. An updated and/or custom kernel will help a LOT more with that.
Click to expand...
Click to collapse
I'm intrigued; how is that? More importantly, does such a kernel currently exist? I started this thread in search of a second charger that just worked as well as the original one. I'd be happier if could find something that did better than the OEM.
jerryp7 said:
Nice tip - thanks. That and the POGO has to be about as fast as it gets PLUS with the second USB port I will be able to charge my phone and tablet at the same time, same charger.
Click to expand...
Click to collapse
What I can tell you is that both powergen units charge the N10 fine.
What I can't tell you is whether they charge the N10 any faster than the stock wall unit. I haven't done any testing.
I'm expecting my pogo cable any day, maybe I'll do some testing then.
There are so many differing theories here, who knows?
scooterboy5 said:
What I can tell you is that both powergen units charge the N10 fine.
What I can't tell you is whether they charge the N10 any faster than the stock wall unit. I haven't done any testing.
I'm expecting my pogo cable any day, maybe I'll do some testing then.
There are so many differing theories here, who knows?
Click to expand...
Click to collapse
Yes so many, maybe if someone would write to Mr google and ask him he would explains it to us hehehe
I have seen some dual USB port PS that are rated "total" for both "not" each port. How is this PowerGen 3.1?
Just check and it's listed as "shared", so that's 3.1A total.
The description clearly states that each port can supply up to 3.1A. If both are used at once, the 3.1A is shared.
EDIT - Post #6 has a quote from Kensington confirming the charger does not work with the Nexus Tablet
So been trying to get a dual-USB 2.1A charger to use with my Nexus 7 and my old desire-Z phone (I also have a 1st gen iPad so figured would be a nice perk for both ports to deliver that juice).
I even went as far as buying a new USB Cable thinking something was wrong with my cable and flashing a couple of different kernels (thinking it was maybe that).
Fact is whenever I plug my N7 into a Kensington AbsolutePower 4.2 w/ PowerWhiz (K39690AM), Battery Monitor Pro widget will say in green "AC Plugged", "Discharging", and if it does show "Charging", it's only drawing in around 130mA or so. But yet on my Desire-Z (G2) I plug that in, it'll show maybe around 500mA (it won't go over 1A because it's designed not to for smart phones).
However If I plug the N7 into a Samsung 2.1A charger that came with a Galaxy Tab 2 7.0, The N7 will show a power draw from the charger a little above 1,800mA (and then goes down to around 500 or less once it hits 99%), similar situation with the samsung charger + my G2.
So I'm constantly googling trying to figure out whats up, and the only thing I've come across are various reviews on Amazon (they list this as a Dual 2.1A USB charger), with some complaints saying they don't work with Asus Tablets and another saying it wouldn't charge much at all on his Nexus 10.
So I'm wondering... what's up with that, and why does it not say it's not compatible on the box (though guess they sort of did by excluding Asus and Google from the list of brands on the side).
Its charging. Just the os is not showing it properly
Sent from a phone that's 2 Note-worthy, via XDA Premium HD app.
madman604 said:
Its charging. Just the os is not showing it properly
Sent from a phone that's 2 Note-worthy, via XDA Premium HD app.
Click to expand...
Click to collapse
As I said, I'm using Battery Widget Monitor Pro. IF it was only the OS it would show the exact same deal with the Samsung 2.1A Charger, Nook 1A charger, HTC 1A charger. But instead on ALL chargers except the Kensington one, it shows a much higher charge rate (on the 1A around 800mA charge, on the Samsung around 1.7A charge).
But on the Kensington one never more than 500mA (usually around 300-400). I even exchanged the unit for a new one, and still the exact same behavior. I think the powerWhiz feature of the charger is detecting it not as a tablet but rather as a generic USB Device and is not providing more than 500mA for 'safe' charging. Just like how it won't charge my phone past 1A since it's detected as a SmartPhone even though it's a 2.1A port.
kbeezie said:
As I said, I'm using Battery Widget Monitor Pro. IF it was only the OS it would show the exact same deal with the Samsung 2.1A Charger, Nook 1A charger, HTC 1A charger. But instead on ALL chargers except the Kensington one, it shows a much higher charge rate (on the 1A around 800mA charge, on the Samsung around 1.7A charge).
But on the Kensington one never more than 500mA (usually around 300-400). I even exchanged the unit for a new one, and still the exact same behavior. I think the powerWhiz feature of the charger is detecting it not as a tablet but rather as a generic USB Device and is not providing more than 500mA for 'safe' charging. Just like how it won't charge my phone past 1A since it's detected as a SmartPhone even though it's a 2.1A port.
Click to expand...
Click to collapse
The N7 has a circuit to detect whether the USB cable is plugged into its charger or into a regular USB port. The N7's charger shorts the two data pins. If your charger doesn't short those two pins, the N7 will never go into "high charge" mode.
There is a simple mod to do. Either take the charger apart and short what the data pins should be on the usb port or short the data wires together in a cheapo usb cable at the micro usb side. That will make a charge only cable but it will give. What you need.
Sent from my SPH-D710 using xda premium
So turns out I wasn't crazy after testing two of their chargers.
Dear Karl:
Thank you for contacting Kensington Technical Support.
We understand that our Absolute Power™ 4.2 Dual Fast Charge is not charging your Nexus tablet properly, we regret to inform you that Absolute Power™ 4.2 Dual Fast Charge for Tablets is not compatible with Nexus Tablet, hence we would be glad to refund you the amount.
If the date of purchase is within 90 days, we request you to utilize the 90-days Money Back Guarantee policy.
Please click on the following link to know about the 90-days Money Back Guarantee form
http://www.kensington.com/kensington/us/us/s/1570/90-day-money-back-guarantee.aspx
We are sorry for the inconvenience caused.
If you need further assistance, please feel free to reply to this message.
For any further assistance please feel free to reply back to this email or you may want to call us on our toll-free number 1800-535-4242, Mon Fri 07:30 am to 04:30 pm PST.
Please Read This!
Kensington Technical Support incidents are only processed via our support web site, not via email. Please do NOT reply to this email, but rather you must click on the link below which will bring you to the Kensington Technical Support web portal where you can initiate questions, modify your active incidents, or perform maintenance on your support account.
Again, please do NOT respond to this incident via email, please click on the link below to access your support incident. Thank you.
http://www.kensington.com/kensington/us/us/s/1708/mystuff.aspx
Kensington Computer Products Group
Regards,
Shiva Kumar
Click to expand...
Click to collapse
graydiggy said:
There is a simple mod to do. Either take the charger apart and short what the data pins should be on the usb port or short the data wires together in a cheapo usb cable at the micro usb side. That will make a charge only cable but it will give. What you need.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Yea... I'm not taking apart a charger. I just returned the second one to the store where I got it and got one that did work. Also that method won't work with the kensington, with it's powerwhiz feature if it can't detect the device it'll limit to 500mA for safety.
Besides I've already returned the second charger (I exchanged the first one, re-ran tests, etc), and ended up getting an RCA 4-outlet power strip/surge protector that has two USB ports (one for 2.1A charging) that does work.
All android devices look for 200ohms on the data pins to determine if it is a charge vs data source. Except the handful of proprietary connections (ex:Nook Color).
Yep. All things said in this thread are true. What I've found to work great with the stuff I already have is a Samsung Galaxy S4 charger. That thing
charges the N7 at about 1500 mA. Measured with my multimeter. It's weird though,
it'll start around 800mA and after about 45s to a minute it will start pulling in almost double that.
Crazy.
So I am back again asking about power.
Since switching to my Nexus 5x I have had to redo all of my power supplies. I went ahead and pulled the trigger on the Google wall options but now I have a request for something portable.
What I am looking for is a battery pack that can output the 3amps to quickly charge the phone, I dont really care if it charges quickly itself. The reason being is I have a solar panel that can push 1-2 amps and I was planning on strapping it to the back of the bike or leaving it on the tent to charge the battery over time and then using the battery to charge the phone.
I actually just purchased this
http://www.amazon.com/gp/product/B00BQ5KHJW?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
I got it for $21..99 on a lightening deal. Haven't tried it yet, but it outputs 3amps
I have an Anker Powercore 21000mAH external battery, using a USB A to C cable, Ampere reports charge rates up to approx 1700mAH. The lock screen reports charging rapidly.
The cable is a Pecham one, It appears to be good quality, nice and thick, braided cable and a positive fit at the 5x end. I was happy with the charging speed, having just read the google cable reviews thread not so sure.....
B
ryan stewart said:
So I am back again asking about power.
Since switching to my Nexus 5x I have had to redo all of my power supplies. I went ahead and pulled the trigger on the Google wall options but now I have a request for something portable.
What I am looking for is a battery pack that can output the 3amps to quickly charge the phone, I dont really care if it charges quickly itself. The reason being is I have a solar panel that can push 1-2 amps and I was planning on strapping it to the back of the bike or leaving it on the tent to charge the battery over time and then using the battery to charge the phone.
Click to expand...
Click to collapse
I own the Romoss Solo5, outputs at 2.1a and 1.5a. With a normal type C cable from CableMatters, I don't get rapid charging, but it does fill up faster than a generic usb charger.
http://www.amazon.com/gp/product/B00J1EO4IA?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00
Perez92 said:
I actually just purchased this
http://www.amazon.com/gp/product/B00BQ5KHJW?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
I got it for $21..99 on a lightening deal. Haven't tried it yet, but it outputs 3amps
Click to expand...
Click to collapse
Ill be curious to see what you get. My concern is they dont mention the specific output of the ports, just the overall 3 amp. I suspect its split across teh two ports in some fashion like most (where they can do 2 amps on a single port but then 1.5 across both)
I have a 2 amp charger but I am hoping for a 3 to get that max performance. The idea is I could use the phone for music, navigation, etc on the motorcycle and then get a very quick top up while breaking for lunch, etc.
You need a type C connector at both ends.
A USB type-C to type-A cable cannot and should not allow charging at more than 2A (0.5A for USB 2.0 standard), because that is the most allowed in the USB spec as mentioned by the Google engineer that's been reviewing Type-C cables on Amazon. In order to support 3A rapid charging you would need a battery pack with a type-C port on it that supports rapid charging. Even if a type-A port is capable of supplying 3+ amps, the phone will only charge at up to about 1.7A without the type-C port at both ends. I don't know of any battery packs that support the type-C spec yet, although I'm sure they're coming.
That is why I am asking. I dont care if it charges itself at 3amps because my sources wouldnt provide that anyway. Im looking for the battery pack itself to pump out 3 amps. Im holding out for one of those and until then I will work along with my existing ones.
Check out the ravpower 20100mah-external-battery-charger-QC2.0-type-c. Can't post links yet.....
mevol said:
Check out the ravpower 20100mah-external-battery-charger-QC2.0-type-c. Can't post links yet.....
Click to expand...
Click to collapse
http://www.amazon.com/product/dp/B0156HCJQO/ref=as_li_ss_tl?ie=UTF8&linkCode=sl1&tag=androidusb-20&linkId=c4193d8075320df6322366eecaa84448
Neat thing about this, you can use the OEM 5v 3a charger to charge it. Interesting to see if it charges faster than other options.
mysterious posted in the other thread that he/she ordered it. Im waiting with baited breath to hear the results. This might be the perfect all-rounder (dont really need the other ports but they dont hurt anything).
Could charge with my solar panels, could charge with the stock adapter and hopefully the phone quickly on a lunch break.
I love how none of these products ship to Canada, except the official Google stuff which is no out of stock.